Automatic fire sprinkler system



Aug. 2,1927. 1,637,621

H. M. MINNIS AUTOMATIC FIRE SP--RINKLER SYSTEM Filed July 2, 1925 lill. vll/1 31a/vento@ Patented Aug. 2,Y 1927.

,PA-TENT, OFFICE.

HENRY n.' HINNIS, or WYL1E,TExAs, AssIGNon or ONE-THIRD To ELBA A. THOMAS AND ONE-THIRD To JOHN H. FINGH, BOTH orl WYLIE, TEXAS.

AUTOMATIC ,FIRE SPRINKLER SYSTEM.

Application lied July 2, 1925; Serial No. 41,010.

This invention relates to new and useful improvements y1n valve controlllng meansy room to close an electric circuit actuating a trip member to automatically open the water valve of the sprinkler headr in said invention will be hereinafter described to-y `room, thus extinguishing the fire and yisolating it at its point of origin.

A construction designed to carry out the gether with other features of the invention.

The invention will be more readily kunderstood from a reading of the following specification and by reference to the accompanying drawings, in which an example yof the invention is shown, and wherein:

kler head 15 at its lower end. vThe valve has a swinging gate 17 operated by a rocky shaft 18, Figs. 1 and 3, but the kparticular type of valve may be varied. When the gate is down the valve is closed. For swinging the valve a lever 19 is attached at one end to the rock shaft and has its other end loosely confk nected with an arm 20. For supporting the arm in an elevated position so as to normally f close the valve a rock shaft 21 is hinged on n a plate 22 suspended or supported by brackn ets 23. The shaft 21 has a trip lug 24 on 'one end and the upper end of the arm is notched'to engage over said lug. `The arm also engages in a kee er 25 on the edge of the plate, whereby it 1s held against lateral displacement.

From' the opposite end of the shaft 21 a n finger 26 extends and has a ytrip lug 27 at 27 rests.

yits free end. A hinged armature plate 28 carries/an insulated lip 29 on which the lug Ay pair of clectromagnets 30 are mounted on a bracket 31 on the plate in Vposition to attract the armature when energized.v When the plate 28 is swung by the action of the magnets the lip 29 will be swung from under the trip lug 27, whereby the linger 26 will be released to swing down and rock the shaft 21. The shaft 21 upon rocking will swing they lug 24 from the end of the arm 2O `which latter will be free to swing down. As the arm swings down it will swing thelever 19 thus rocking the shaft 18 and opening Vthe gate 17. Owing tor the loose connection between the arm 2() and the lever 19, the latter will be given a jar when the `former swingsdown. The

`valves 11 and 16 being opened water will flow through the pipes 10, 12 and 14 and discharfre from the sprinkler head 15 in the particulzar `room where the valve 16 is opened.

n The electromagnet 3() is connected by wires C and D for the usual thermostatic kcontrol and ,aty one side of the plate 22 spaced insulated contacts 3,3 and 34 are mounted to be engaged by an extension from thearmature plate 28. From these contacts linesvF and Gr extend to a suitable signal device to indicate the presence of a fire.

In the operation of the invention a fire in any room will cause the thermostat to close ycircuit and energize the magnets 30 which attract the armature 28 causing the lip 29 to be swung from under the lug 27 and the finger thus tripped. As the finger swings downy the shaft 21 is rocked and the lug 24 withdrawn from its support of the arm 20 which in turn swings downward causing the lever 19 to open the gate 17 of the valve 16. A The invention therefor presents a simple, efficient and economically manufactured controlling device for the sprinkler valve. Various changes inthe .size and shape of the different parts, as well as modifications and `f alterations may be made within the scope of the appended claim.

What I claim,fis: A valve controlling means for a fire ex- (lll tinguishng system comprisingl a pivoted valve, a swinging member extended from the pivot thereof, a. base, a rook shaft having a, horizontally disposed portion pivoted thereon and formed with a supporting lug at one side of the base to lie beneath Said member and an elongated gravity -finger at HENRY M. MNN IS. 

